Groz S2270 User manual

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INSTRUCTION MANUAL
S2270, REV C
Professional Ratcheting
Torque Wrench
SPECIFICATIONS
CAT NR. SQUARE
DRIVE
TORQUE
RANGE
FINE
SCALE
OVERALL
LENGTH
NET
WEIGHT
INCH NM (FT-LB) NM MM KG
TQW/RT/1-4/25 1/4" 5-25 (4-18) 0.1 323 0.765
TQW/RT/3-8/25 3/8" 5-25 (4-18) 0.1 323 0.765
TQW/RT/3-8/50 3/8" 10-50 (7-35) 0.5 400 0.983
TQW/RT/1-2/100 1/2" 20-100 (15-75) 0.5 400 0.998
TQW/RT/1-2/200 1/2" 40-200 (29-150) 0.5 517 1.36
TQW/RT/1-2/340 1/2" 60-340 (44-250) 1620 1.73
TQW/RT/3-4/750 3/4" 150-750 (110-550) 2.5 1210 5.85
TQW/RT/0-1/1000 1" 200-1000 (147-750) 2.5 1500 7.426
High Accuracy Torque Wrench, with
unmatched features, safety & comfort.
48 teeth Ratchet allows for an
engagement angle of 7-1/2° which is ideal;
providing both precise adjustment & non
slip use.
Cr-Mo Steel Square Drive.
Adjustment of Torque is achieved
by pressing the Safety Button &
simultaneously pulling out the Adjustment
Ring; turning the ring to the desired
value, re-pressing the Safety Button &
simultaneously pushing the Adjustment
Ring back. Fully secure locking mechanism
avoids forced adjustment.
Lightweight with a comfort grip handle &
lens for clear reading of the set value.
Tightening achieved in Clockwise direction
with a Click sound once the required
torque is achieved. Reversing the ratchet
allows for using the wrench in anti
clockwise direction, used to loosen an
over tightened fastener.
Accurate to +/– 4% of reading.
Each unit is individually serial numbered &
includes calibration certificate traceable to
International Standards.
Dual Scale:
Nm / Ft Lb.
Lens
(Screen)
Safety Button
Adjustment Ring
Ratchet Lever
Fixed Head
Adjustment Ring
in unlocked
position for setting
Torque value
SET MODE
USE MODE
Adjustment
Ring in locked
position
Cr V Body
(Mat Satin Finish)

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ASSEMBLY & OPERATION
1. Set the desired Torque level (Refer: Setting the Torque).
2. Mount the socket on to the square drive.
3. Tighten the nut by rotating the Torque Wrench in clock
wise direction till the click sound is heard/felt.
SETTING THE TORQUE
1. Press the Safety Button present on the handle and
simultaneously pull down the Ring at the bottom of the
handle.
2. Rotate the Ring to set the Torque. Value of torque can be
easily seen through the convex lens on the handle.
3. Press the Safety Button and simultaneously push back the
adjustment ring to lock the Torque Valve.
4. Do not rotate the adjustment ring below the min. Torque
and above max. Torque level.
5. Torque can be adjusted for fine scale by adjusting the
adjustment ring using markings on the adjustment ring.
WARNING
1. Torque Wrench must not be used as a tightening device.
Tightening a nut can decrease the operating life of Torque
Wrench. It must be used on an already tightened nut.
2. Always use a appropriate size Socket depending on the
size of the nut.
3. Always grip the handle from the centre while operating.
4. Do not multiclick the Torque wrench. Stop the moment
you hear or feel the first click. Multiclicking can damage
the ratchet mechanism inside the Torque wrench.
5. After use, wind your wrench to the lowest setting on the
scale and put it back into the Blow Moulded Case.
6. Do not set the Torque beyond the max. or min. stop
warning shown in the lens.
According to ISO 6789-1 : 2017
A period of 12 months or 5000 cycles, whichever occurs first, may
be taken as default value for the re-caliberation of torque wrench.
The interval starts with the first use of torque wrench.
Fine
Scale
TORQUE WRENCH CALIBRATION
Requirement
1. Torque Wrench
2. 2.5 mm Allen Key
3. Torque tester
Torque setting: 100%
Torque Tester setting:
100%
Torque setting: 100%
Torque Tester setting:
100%
Torque setting: 20%
Torque Tester setting:
20%
Set the torque wrench
at the minimum value
before placing it in the
blow moulded case
Even if 1 value is out
of ±4% tolerance, the
torque wrench needs
to be re-calibirated
If the torque value
is higher than 104%,
adjust the screw in
clockwise direction
If the torque value is
lower than 96%, adjust
the screw in counter
clockwise direction
> 104 %
or
< 96%
If the values observed
are within the +/- 4%
range
Torque setting: 60%
Torque Tester setting:
60%
Pre-load: 3 times
Do not record
Re-calibrate the
torque wrench in
compliance with
ISO 6789-1 : 2017
calibration process
of torque wrench
NOT
GOOD

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Note: Before recording data, there should always be pre-
operation to warm up the structure.
means pre-operation, do not record.
means formal operation, record the data.
1. Operate 3 times at the Max Torque (100%)
2. Loosen to the lowest torque
3. Set to 20% of the Max. Torque, Operate 5 o.
4. Set to 60% of the Max. Torque, Operate 5 o.
5. Set to 100% of the Max. Torque, Operate 5 o.
6. Loosen to the lowest torque.
According to ISO 6789-1 : 2017
A period of 12 months or 5000 cycles, whichever occurs first, may be
taken as default value for the re-caliberation of torque wrench. The
interval starts with the first use of torque wrench.
TROUBLE SHOOTING
TROUBLE CAUSE SOLUTION
Torque Wrench Slipping Damaged Ratchet Mechanism Repair using Ratchet kit
Variation in Set and Actual Torque Calibration Problem Send for Calibration
Not able to pull down the adjustment Ring Down Safety button not pressed properly Press and Hold the Safety button properly and simultaneously pull down
or push up the adjustment Ring
REPAIR KITS
PART NR. COMPONENTS QTY.
RATCHET KIT
Square Drive 1
Pawl 1
Steel Cover 1
Screw 3
Switch 1
Spring 1
Steel Ball 1
HANDLE KIT
Grip Kit 1
Safety Push Button Kit 1
Knob 1
Screw 1
REPAIR KITS SELECTION GUIDE
RATCHET KIT
KIT NR. TORQUE WRENCH PART NR.
RPR/TQW/NM/3-8A TQW/RT/3-8/50
RPR/TQW/NM/1-2 TQW/RT/1-2/100
RPR/TQW/NM/1-2A TQW/RT/1-2/200
RPR/TQW/NM/1-2B TQW/RT/1-2/340
RPR/TQW/NM/3-4A TQW/RT/3-4/750
RPR/TQW/NM/0-1A TQW/RT/0-1/1000
HANDLE KIT
RPR/TQW/GRP Common to all sizes
ISO 6789-1 : 2017 CALIBRATION PROCESS OF
TORQUE WRENCH
20%
60%
100%
Picture for reference only

Groz Engineering Tools (P) Ltd.
Groz Net Industries
Village Kherki Daula, National Highway-8,
Gurgaon-122001, Haryana, INDIA
Tel [phone]
Fax [phone]
E-Mail
Url
[e-mail]
www.groz-tools.com
The GROZ name, GROZ logo and the mark are
trademarks of Groz Engineering Tools (P) Ltd., India